BOISE, Idaho (AP) — Federal authorities are working on a plan aimed at deciding how much sport, commercial and tribal fishing for salmon and steelhead will be allowed in the Columbia River and its tributaries.

The joint environmental impact statement being prepared by the National Marine Fisheries Service and the U.S. Fish and Wildlife Service also considers hatchery production.

The agencies will use the document as part of a decision-making process leading up to the possible signing of an agreement with Idaho, Oregon and Washington as well as tribes in those states with harvest treaty rights. The current agreement expires at the end of 2017.

What's at stake are the adult salmon and steelhead that return to the Columbia Basin — about 2.9 million last year.

Comments are being accepted through Aug. 1.

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